feat: caching, optimization, legal pages & footer

- WP Super Cache enabled (PHP mode, gzip, Nginx compatible)
- Autoptimize: CSS/HTML minification + deferred JS + Google Fonts optimization
- Cookie Notice: GDPR/LOPD banner styled with brand colors (navy/burgundy/gold)
- Legal pages: Aviso Legal, Política de Privacidad, Política de Cookies (ES)
- MU-plugin: custom footer with legal links + Cloud Host credit
- Footer: copyright, legal nav, Hosted & Maintained by Cloud Host (cloudhost.es)
- Security: X-Frame-Options, X-Content-Type, Referrer-Policy headers
- Security: XML-RPC disabled, REST user enumeration blocked
- Performance: emoji scripts removed, post revisions limited to 3

wp-content/plugins/cookie-notice/includes/modules/speedycache/speedycache.php

@@ -0,0 +1,64 @@
+<?php
+// exit if accessed directly
+if ( ! defined( 'ABSPATH' ) )
+	exit;
+
+/**
+ * Cookie Notice Modules SpeedyCache class.
+ *
+ * Compatibility since: 1.0.0
+ *
+ * @class Cookie_Notice_Modules_SpeedyCache
+ */
+class Cookie_Notice_Modules_SpeedyCache {
+
+	/**
+	 * Constructor.
+	 *
+	 * @return void
+	 */
+	public function __construct() {
+		// actions
+		add_action( 'plugins_loaded', [ $this, 'load_module' ], 11 );
+	}
+
+	/**
+	 * Add compatibility to SpeedyCache plugin.
+	 *
+	 * @global object $speedycache
+	 *
+	 * @return void
+	 */
+	public function load_module() {
+		global $speedycache;
+
+		// check caching status
+		$cache_active = ! empty( $speedycache->options['status'] );
+
+		// update 2.4.17
+		if ( version_compare( Cookie_Notice()->db_version, '2.4.16', '<=' ) ) {
+			if ( $cache_active ) {
+				// clear cache
+				$this->delete_cache();
+			}
+		}
+
+		if ( $cache_active ) {
+			// delete cache files after updating settings or status
+			add_action( 'cn_configuration_updated', [ $this, 'delete_cache' ] );
+		}
+	}
+
+	/**
+	 * Delete all cache files.
+	 *
+	 * @return void
+	 */
+	public function delete_cache() {
+		// clear cache
+		if ( function_exists( 'speedycache_delete_cache' ) )
+			speedycache_delete_cache( true );
+	}
+}
+
+new Cookie_Notice_Modules_SpeedyCache();